﻿// The Nova Project by Ken Beckett.
// Copyright (C) 2007-2012 Inevitable Software, all rights reserved.
// Released under the Common Development and Distribution License, CDDL-1.0: http://opensource.org/licenses/cddl1.php

using System.Collections.Generic;

using Nova.CodeDOM;

namespace Nova.UI
{
    /// <summary>
    /// The view model for a <see cref="CodeDOM.TypeConstraint"/>.
    /// </summary>
    public class TypeConstraintVM : TypeParameterConstraintVM
    {
        #region /* STATICS */

        internal static void AddViewModelMapping()
        {
            CreateViewModel.Add(typeof(TypeConstraint),
                delegate(CodeObject codeObject, bool isDescription, Dictionary<CodeObject, CodeObjectVM> dictionary) { return new TypeConstraintVM((TypeConstraint)codeObject, dictionary); });
        }

        #endregion

        #region /* FIELDS */

        protected ExpressionVM _typeVM;

        #endregion

        #region /* CONSTRUCTORS */

        /// <summary>
        /// Create a view model instance for the specified <see cref="CodeDOM.TypeConstraint"/>.
        /// </summary>
        public TypeConstraintVM(TypeConstraint typeConstraint, Dictionary<CodeObject, CodeObjectVM> dictionary)
            : base(typeConstraint, dictionary)
        {
            _typeVM = (ExpressionVM)CreateVM(typeConstraint.Type, false, dictionary);
        }

        #endregion

        #region /* PROPERTIES */

        /// <summary>
        /// The underlying <see cref="CodeDOM.TypeConstraint"/> model.
        /// </summary>
        public TypeConstraint TypeConstraint
        {
            get { return (TypeConstraint)CodeObject; }
        }

        /// <summary>
        /// The type <see cref="Expression"/>.
        /// </summary>
        public ExpressionVM Type
        {
            get { return _typeVM; }
        }

        #endregion

        #region /* METHODS */

        #endregion

        #region /* RENDERING */

        protected override void RenderConstraint(CodeRenderer renderer, RenderFlags flags)
        {
            _typeVM.Render(renderer, flags);
        }

        public override void UnRender()
        {
            _typeVM.UnRender();
            base.UnRender();
        }

        #endregion
    }
}
